Flush switch.



W. J. NEWTON.

FLUSH SWITCH. APPLICATION FILED MAY e. I9I5.

Patentedi July 17, 1917.

' yating means project.

. customary to operate switch face and easy Aoperating means and so that vthe attaching means pointed ollt in the claims.`

WILLIAM J'. NEWTON,

tribe.

or LYNBnooK, NEW Yoan,

.assienon To ivnwfron' MANUFAC- TUBING COMPANY, OF LYNBROOK, NEW YORK, A. CORPORATION OF NEW YORK.

FLUsmswrrcH.

vented certain new and useful Improvements` in Flush Switches, of whichthe following is a description.

My invention relates to electric switches,

particularly adapted to control local circuits in buildings, and is more particularly directed to that type of switch, the mechanism of which is countersunk in the wall of a building and covered by aface plate flush with the wall through which vplate the oper- Heretofore it has been mechanisms by means of two buttons pro]ecting through the plate as shown in my Letters Patent Nos. 582,303, 702,989 and 917,348. 1- have, however, .recently been granted a Patent, No. 1,186,930, for a flush switch operating with but a single button projecting through the face plate.

lll`he object of this invention is to rovide a small, simple and eicient switch w ich shall n have a quick make and a quick break as required by the National Board of FireUnderwritei's and which may be operated by means of a pivoted lever, toggle or tumbler projecting through the face plate and by this peculiar construction forming a positive forx the switch parts.

Another object of my invention is to reduce the size of the faceplate required to a much smaller size than that necessary for use with the two button' switch described above. My invention, therefore, contemplates the arrangement of the face plate and the operating lever so that they together will form a pleasing and artistic arrangement plate will be entirely inconspicuous. objects of my' in the specification and more particularly In the drawings which form a part hereof and in which like reference characters designate like parts throughout the several views:

Figure 1 is a sectional Aside view of the,

Specification of Letters Patent.

for the face Other invention will be referred to switch, the section being taken on the line' Fig. 2 is a sectional end view on the line 22of Fig. 1; i

y y Parenteel .iuiyia lait. 4 Application flied Mays, 1915. seriaiiiaaaaw.

Fig. a illustrates the race of the Switch,

showing a small circular face plate, it being view also shows the plate may beused. |This the operating lever in the olf position of 'understood that any other suitably shaped,l

and on positions and the attaching means for the'face plate;

Fig. 1 shows the bridge piece the switch;

Fig. 5 shows the toggle or handle; Fig. 6 shows the shaft arm;

or yoke of of Fig. 1; y

Fig. 10 is a side view ofthe contact blade;

,Flg. 11 is'a side view plate;

and v Fig. 13 shows Referring to the movable switch blades. Fig. 1, 1 have shown at Q;

8 is a'side'view of a portion of thev Fig. 412 is the voperating spring holder;

Fig. 7 is a side view of the operating of the switch .i movement, partly in section on the line 9-9 l of the insulation the switch box, which may be made of pori celain or. any other suitable insulating material, and is preferably so shaped as to have la concave bottom, trance through Jan iron outlet box' of the shallow type, of an additional. through circuit as well as the wiresM M of the circuit` it is desired to control, which wires lead to the binding posts yN N of the switch.

rIlhe boX switch contactsH ll-l which are f i are held carried bythe binding posts N N in recesses provided for them in the switch box by the countersunk screws O O, this arrangement providing a ysubstantial structure, while at the same timepermitting easy assembling and removal of the switch blades and binding posts. The face plate ll is provided with a round hole in the vcenter large enough to accommodatey the bushing J, whichbushing is provided with a shoulderwhich `servesto hold theplate ll against the switchl box. By simply unscrewing the 8% i thus permitting the en- .ioo i bushingJ the face moved. I am thus unsightly screws or and to make the means for attaching the face plate as inconspicuous as possible.

The bridge A of the switch is provided with the upstanding threaded collar P, which is attached to the bridge by screwing it into the central hole thereof, or in any other suitable way. ivoted in the collar P is the operating toggle or handle E which thus projects through the face plate and is provided at its outer end with a button. The inner end of switch toggle E is provided witha slot which embraces aY cross rod" extending between the two sides of the operating lever B and fastened in the holes therein lat B. The two sides plate I may be easily reenabled to dispense with of the operating lever are further held together by means of -cross rods fixed in the holes B2 and B3,

holes B4, it being understood that the operating lever comprises two sides such as illustrated in Fig. 7 The pivots upon which the operating lever 1s supported y pass through holes \A2 of the bridge A. The shaft arm shown in Fig. 6 has its two ends bent at right angles to the center portion thereof, and is pivoted upon the bridge A by pivots` passing through the holes A thereof. The two sides of the bridge, it being-understood, are' bent as shown in Figs. 2 and 9 to receive the shaft holes B5 arm or U-shaped yoke C and operatin lever B. Supported upon the shaft arm and insulated therefrom by means of insulating washers K (Fig. 1l) are the switch blades G G, which are adapted to coperate with the stationary switch blades H. v

Pivoted in the operating lever B,'in thereof, is the spring holder D which carries a spring F. holder D passes through the slot C in the shaft arm and the spring F is confined between the shaft arm and the pivoted end of the spring holder D.

Formed upon the ends' portions of the bridge A A7 adapted to coperate arm to limit its throw. K

'The operation of my improved switch is of the. depending are stops A and with the shaft y ,as follows: v

The outlet box beingsecured in the wall or other location, the yswitch is fastened `within it by suitable means, the bridge A being attached to the switch boX Q in any desired manner, as for example, by means of screws passing through holes A4 and A5 and intop'the material of the switch boX. The wires M M are connected to the binding posts N N. The face plate lis applied over the collar and fastened in place by the bushing or collar J by screwsimilar attaching means,

the operating lever being pivoted upon pivots passing through the The spring ing the same to the collar P. When the handle or toggle E is pushed over to the position shown in the dotted lines in Fig. 8, the cross rod embraced by the slotted end of the toggle E moves upward in the slot, thus rotating the operating lever upon the pivot passing through the holes B4 and forces the compression spring held by the spring holder D .against the shaft arm C, thus pushing the free end of the spring holder through the slot C, which is preferably provided with beveled edges to permit of the oscillation of the spring iolder D. When the upper end of the spring F under compression reaches a point beyond the lower end, the shaft arm C is forcibly projected into the reverse position under the impulse of the spring F to the position shown in the dotted lines in Fig. 8, thus moving the contact blades G carried by the shaft arm C to a position 90 from their original position, thus breaking the circuit. A reversal of the operation as described above will throw the contact blades G back into contact with the contact blades H H, thus completing the circuit. The stops A0 and A7 limit the throw of the shaft arm `C to the necessary movement.

While I have do not desire to be limited thereto, since it is obvious that many modiications may be made without departing from the scope of my invention -as defined by the claims which follow.

What I claim is:

l. In 'a flush wall switch, the combination of an apertured face plate, a supporting bridge iaving (an upstanding collar adapted to project through the aperture in the face plate, a contact blade, a pivoted member for supporting and oscillating said blade, a second member pivoted eccentrically of said first member and operatively connected thereto, and a manually operable lever pivoted within the collar and passing therethrough, and having a lost motion connection with said second member.

2. In a flush wall switch, tion of an apertured face plate, a support`- ing bridge having a pair of depending arms and an upstanding collar adapted to project through the aperture in the face plate, a contact blade, a member pivoted to said -depending arms for supporting and oscillating `said blade, a second member pivoted to said depending arms eccentrically of said first member and operar tively connected thereto, and a manually operable lever pivoted within the collar and passing therethrough, and having a lost motion connection with'said second member.

3. In a Wall switch, the combination of the combinamesser l an apertured tace I plate, a supporting 'yoke being pivoted at having apair of depend bridge having a pair ot depending arms and an upstanding collar adapted to project through the aperture in the face plate, a contact blade, a ll-shaped yoke for supporting and oscillating said blade, said its ends to said de pending arms, an operating lever also piv oted to said depending arms, a spring interposed between said operating lever an the intermediate portion of said yoke, an a manually operable lever pivoted within the collar and passing therethrough, and having a lost motion .connection with said operating lever.

4C. ln a flush wall switch, the combination of an apertured tace plate, a supporting bridge, a contact blade, a pivoted-member Jfor supporting and oscillating said blade, a second member pivoted eccentrically of said lirst member, and operatively connecte thereto, and a manually operable lever pivotally sup orted by said bridge and passin through t e aperture in said face plate, and having a lost motion connection with said second member.

5. ln a flush wall switch, the combination ot an apertured tace plate, a supporting bridge having apair of depending arms, a contact blade, a member pivoted to said depending arms Jfor supporting and oscillating said blades,

first member, and operatively connected thereto, and a manually operable lever pivotally supported' by said bridge, and passing through the aperture in said face plate, and having a lost motion connection with' said second member.

6. In a wall switch, an aperturedtace plate,

the combination of a supporting bridge ing arms, a contact blade, a U-shaped yoke for supporting said blade, said yoke'bemg pivoted at-its ends to said depending arms, an operating lever also pivoted to said depending arms, a spring interposed between said operating lever and the intermediate portion of said yoke, and a manually operable lever pivotally supported by said bridge and passing through the aperture `in said face plate, a lost motion connection with ing lever.

7 In a switch, in combination, a supporting bridge, a tace plate ladapted to be connected thereto, a contact bl de, a blade-carrier pivotally connected to said bridge for said operatfrom said lever the depending arms,

a second member pivoted to said depending arms eccentrically ot Said and having supporting and oscillating said blade, a single operating lever extending through sai tace plate, and an oscillating member flexibly connected with said blade-carrier and connected with said lever to transmit motion to said blade.

8.. lin a switch, in combination, a tace plate, an operating lever extending therethrough, a blade carrier, a contact blade mounted thereon, an intermediate member in connection with said lever, mounted eccentrically with respect to the blade carrier and having a flexible connection with said blade carrier, said connections allowing a movement ot said lever in one direction thereby causing said blade carrier to move in the opposite direction.

9. ln a wall switch, the combination ot an apertured tace plate, an apertured supporting bridge having depending arms, a conbladc, a pivoted member for supporting and oscillating said blade mounted upon a second pivoted member also mounted upon the depending arms and operatively connected to the iirst pivdit oted member and a pivotally mounted lever mounted upon the bridge and passing through the apertures in the bridge and tace plate and having an operative connection with said second pivoted member.l

10. In a wall switch, a contact blade, a pivotally mounted blade-carrier, a member pivotally mounted eccentrically ot and connected to said blade-carrier, a supporting device upon which said blade-carrier an said member are carried and a lever pivotally mounted eccentrically of and engaging said member and adapted to be manually operated to throw the switch.

1l. ln a switch, in combination, a face plate, a single operating lever extending through said face plate, a Contact blade, a pivoted member for supporting and oscillating said blade, a second pivoted member having a lost-motion connection with said operating lever and having a flexible connection with said irst pivotedy member whereby the full movement of the switch blade is made by said flexible connection.

In testimony whereof l have signed this specilication in the presence of two subscribing witnesses.

wrLLiAM a. nnwron.

Witnesses:

ANNA MARIE WALL, A. C. PARHAM. 

